A 'noob'. Someone who is new to something and asks the already answered questions.
Usually people who are arrogant/condecending use it to describe thse 'noobs'.
I would be a skroop if I managed to stuff up the 'word' tags above.

"How do I do this (where 'this' is a common task relating to a particular field)?"
"Pfft. You skroop! This is how!"